[GE users] Slot-wise suspend on subordinate

templedf dan.templeton at sun.com
Mon Sep 21 14:15:13 BST 2009

We've talked about doing something like this, but it would appear to 
make more sense to spend the effort on making the scheduler truly 
preemptive, which would be an even better solution to the problem.  No 
concrete plans on when, though.


sarman_1998 wrote:
>> Well, CPUs (i.e. slots) are freed. But consumed resources aren't  
>> freed by a suspension. They are still occupied when a job gets  
>> suspended.
>> This would be a completely new project to free for example licenses  
>> or consumed virtual_free by a suspension and give them back to the  
>> system I think. Maybe this should be called hibernate job (with new  
>> options to qmod) then and have similar entries like the  
>> subordination. The algorithm is much more complex, as first the job  
>> must be stopped, then the resources given back and a new job can  
>> consume the freed resources. And the un-hibernate of the first job  
>> must be forbidden, as long as the new jobs runs...
>> -- Reuti
> This is exactly the feature I need.  Any idea if/when a change like this might happen?
> I've spent a few days trying to get something like this working using qlicserver and a custom script.
> If anyone out there has something like this working and is willing to share their methods it would be much appriciated!
> Thanks,
>    Eric
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